Jun Su Park1, Won Park2, Hong Ryull Pyo1, Byung Kwan Park3, Sung Yoon Park3, Han Yong Choi4, Hyun Moo Lee4, Seong Soo Jeon4, Seong Il Seo4, Byong Chang Jeong4, Hwang Gyun Jeon4. 1. Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. 2. Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. Electronic address: wonro.park@samsung.com. 3. Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. 4. Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Abstract
BACKGROUND AND PURPOSE: To assess the location of recurrent tumors and suggest the optimal target volume in adjuvant or salvage radiotherapy (RT) after a radical prostatectomy (RP). MATERIAL AND METHODS: From January 2000 to December 2012, 113 patients had been diagnosed with suspected recurrent prostate cancer by MRI scan and received salvage RT in the Samsung Medical Center. This study assessed the location of the suspected tumor recurrences and used the inferior border of the pubic symphysis as a point of reference. RESULTS: There were 118 suspect tumor recurrences. The most common site of recurrence was the anastomotic site (78.8%), followed by the bladder neck (15.3%) and retrovesical area (5.9%). In the cranial direction, 106 (87.3%) lesions were located within 30 mm of the reference point. In the caudal direction, 12 lesions (10.2%) were located below the reference point. In the transverse plane, 112 lesions (94.9%) were located within 10mm of the midline. CONCLUSIONS: A MRI scan acquired before salvage RT is useful for the localization of recurrent tumors and the delineation of the target volume. We suggest the optimal target volume in adjuvant or salvage RT after RP, which includes 97% of suspected tumor recurrences.
BACKGROUND AND PURPOSE: To assess the location of recurrent tumors and suggest the optimal target volume in adjuvant or salvage radiotherapy (RT) after a radical prostatectomy (RP). MATERIAL AND METHODS: From January 2000 to December 2012, 113 patients had been diagnosed with suspected recurrent prostate cancer by MRI scan and received salvage RT in the Samsung Medical Center. This study assessed the location of the suspected tumor recurrences and used the inferior border of the pubic symphysis as a point of reference. RESULTS: There were 118 suspect tumor recurrences. The most common site of recurrence was the anastomotic site (78.8%), followed by the bladder neck (15.3%) and retrovesical area (5.9%). In the cranial direction, 106 (87.3%) lesions were located within 30 mm of the reference point. In the caudal direction, 12 lesions (10.2%) were located below the reference point. In the transverse plane, 112 lesions (94.9%) were located within 10mm of the midline. CONCLUSIONS: A MRI scan acquired before salvage RT is useful for the localization of recurrent tumors and the delineation of the target volume. We suggest the optimal target volume in adjuvant or salvage RT after RP, which includes 97% of suspected tumor recurrences.
Authors: Aurélien Wahart; Jean-Baptiste Guy; Alexis Vallard; Benjamin Geissler; Majed Ben Mrad; Alexander T Falk; Nathalie Prevot; Guy de Laroche; Chloé Rancoule; Cyrus Chargari; Nicolas Magné Journal: Br J Radiol Date: 2015-12-09 Impact factor: 3.039
Authors: Felipe Couñago; Gemma Sancho; Violeta Catalá; Diana Hernández; Manuel Recio; Sara Montemuiño; Jhonathan Alejandro Hernández; Antonio Maldonado; Elia Del Cerro Journal: World J Clin Oncol Date: 2017-08-10
Authors: Eonju Lee; Won Park; Sung Hwan Ahn; Jae Ho Cho; Jin Hee Kim; Kwan Ho Cho; Young Min Choi; Jae-Sung Kim; Jin Ho Kim; Hong-Seok Jang; Young-Seok Kim; Taek-Keun Nam Journal: Radiat Oncol J Date: 2017-12-15